Gas or oil stove.



Patented Aug. 22, I899;

E. BUR'VDEN. us on UILSTOVE.

(Application filed May 19, 1899.1

(No Model.)

INVENIOR MM ATORNEYS W/ 7 N f SSE S w: nonms vzrzns co. woToLm-m.WASHINGTON. a. c.

I UNITED STATES EDWARD BURDEN, on

GRA THAM, ENGLAND.

GAS OR OIL STOVE.

SPECIFICATION forming part of Letters PatentNfo. 631,695, dated August22, 1899. Original application filed February 21, I899, erial No.706,375. Divided and this application filed May 19, 1899. Serial No.

(No model.)

To all whont it nuty concern.-

Be it known that I, EDWARD BURDEN, engineer, a subject of the Queen ofGreat Britain and Ireland, and a resident of DesboroVilla, Dysart road,Grantham, in the county of Lincoln, England, have invented certain newand useful Improvements in and Relating to Gas or Oil Stoves, (for whichIhave made application for Letters Patent in Great Britain, No. 12,434,bearing date June 2, 1898,) of which the following is a specification,this application beinga division of my previous application, Serial No.706,375.

My invention relates to stoves, and has for its object to provide astove in which the air to support combustion is initially heated tosecure perfect combustion and a stove in which effective provision shallbe made for inducing circulation of air,so that thereby warm air shallbe disseminated throughout the apartment in which the stove is placed.

My invehtion consists in the arrangement and design of a gas or oilstove in which the air for supporting combustion is conducted from anorifice or perforations in the stove casing, at the lower part thereof,upwardly to horizontal passages around a flue situated above the centralburner-chamber and then downwardly to an air-chamber situated below theburner-chamber, the air beingheated during its passage by the radiantheat from thewalls of the passages and finally issuing from theair-chamber through perforations into the burner-chamber. The air forcombustion being heated as above described, a perfect combustion of theflame or flames is insured and the dissemination of deleterious productsof incomplete combustion that generally ensue in the use of ordinary gasor oil stoves is obviated.

The invention is illustrated in the accompanying drawings, in whichFigures 1 and 2 are respectively front and side sectional elevations ofa stove constructed according to one modification, while Figs. 3 and 4.are similar views of a stove constructed according to a secondmodification.

In carrying my invention into efiect accordand 2 I arrange the airforcombustion to pass from below the stove-casing E F through a passage Gat one side of the casing, then through side flue s G G provided uponthe front and back-of the upper part of the casing E, and then againdownwardly through a passage G upon the other side of the stove to anairchamber II, situated beneath a central burner-chamber F,the airpassing up through an upper perforated plate H into the burnerchamber.(v A refractory inset M is laid in the spaces between the side flues Gand the air in its passage through such side flues is heated thereby,while a grid or series of refractory bars M, preferably of V shape andintegral with the inset M in their disposition in line, provide a seriesof gradually narrowing spaces me, so that thereby a relatively greatarea is provided for the interception of the products of combustion inthe upward passage. I may, however, cause the sides of the side flues tobe completed by means of the refractory inset 1 as illustrated in Figs.3 and t, so that thereby the air shall come into actual contact with thesides of refractory material. In such a case the stove-body may have itsupper partof dome shape and the responding shape, with flanges m uponthe upper edges, which engage with the sides of the casing E. In such adesign, however, an outer casing E may be employed surround diate spaceG being preferably employed as a passage for air from the base of thestove. Such outer casing may be simply provided around the sides and topof the stove.

Having thus described my invention, what Iclaim as new, and desire tosecure by Letters Patent, is

1. A gas or oil stove consisting of a central burner-chamber and lateralair-fines connected by transverse flues, the air passing up one of suchlateral fiues from the base of the stove, along the transverse flues anddown the other lateral flue issuing through to the burnerchambersubstantially as described.

2. A gas or oil stove consisting of a central ing to the modificationillustrated in Figs. 1

burner-chamber and lateral air-flues, the air refractory inset may beconstructed of a coring the central inner casing E, the intermepassingup one of such lateral fines from the base of the stove along thetransverse lines and down the other lateral flue issuing through to theburner-chamber, the inner Walls of the side fines being formed by arefractory inset or flue centrally disposed above theburnerchambersubstantially as described.

In witness whereof I have hereunto set my hand in presence of twowitnesses.

EDWARD BURDEN.

Witnesses:

WILLIAM EDWARD EVANS, ALBERT EDWARD PARKER.

